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Finding the Fourth Proportional to 309,271.98, 426,795.03 and 173,307.00

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Solution

The fourth proportional to 309,271.98, 426,795.03 and 173,307.00 is: 239,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,271.98 : 426,795.03 = 173,307.00 : x
  2. Step 2: Convert to fraction form
    309,271.98/426,795.03 = 173,307.00/x
  3. Step 3: Cross multiply
    309,271.98x = 426,795.03 × 173,307.00
  4. Step 4: Simplify right side
    309,271.98x = 73,966,565,313.63
  5. Step 5: Solve for x
    x = 73,966,565,313.63/309,271.98
  6. Step 6: Final answer
    x = 239,163.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.